YES, It Is Legal to Shoulder an AR-15 Pistol Equipped with an Arm Brace
JULY 2018 UPDATE: It has been clarified that you CAN legally shoulder an AR-15 pistol equipped with a stabilizing brace, irrespective of the manufacturer of the brace. That means a Sig arm brace (e.g. this pistol brace) IS legal to use in this manner. In 2013, SB Tactical introduced the AR-pistol “stabilizing brace.” Navy veteran Alex Bosco designed the … Read more